#1A3E83#1A3E83

#1A3E83 is a dark, vivid blue. Relative luminance 0.053; OKLCH L 38.0% C 0.124 H 261.8°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#1A3E83
RGB	rgb(26, 62, 131)
HSL	hsl(219, 67%, 31%)
HSV	hsv(219, 80%, 51%)
CMYK	cmyk(80.2%, 52.7%, 0%, 48.6%)
CIE-LAB	lab(27.58, 13.90, -42.51)
CIE-LCH	lch(27.58, 44.72, 288.11°)
OKLab	oklab(38.04% -0.0177 -0.1224)
OKLCH	oklch(38.04% 0.124 261.8)
XYZ	xyz(6.2439, 5.3028, 22.1628)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1A3E83 #835F1A

analogous

#1A7283 #1A3E83 #2B1A83

triadic

#1A3E83 #831A3E #3E831A

tetradic

#1A3E83 #831A72 #835F1A #1A832B

square

#1A3E83 #831A72 #835F1A #1A832B

split-complementary

#1A3E83 #832B1A #72831A

monochromatic

#060E1D #102650 #1A3E83 #2456B6 #3F73D9

Accessibility & contrast

On white

10.19

#1A3E83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#1A3E83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1A3E83

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1A3E83	#FFFFFF	#000000	##FFFFFF
##1A3E83	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#114685

Deuteranopia (green-blind)

#003D82

Tritanopia (blue-blind)

#004F5A

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #1a3e83;
/* rgb */ color: rgb(26, 62, 131);
/* oklch */ color: oklch(38.0% 0.124 261.8);

Tailwind

colors: {
  custom: {
    50: '#6872a8',
    500: '#1a3e83',
    950: '#000000',
  },
}

SCSS

$custom: #1a3e83;
$custom-light: #6872a8;
$custom-dark: #000000;

JSON

{
  "hex": "#1a3e83",
  "rgb": {
    "r": 26,
    "g": 62,
    "b": 131
  },
  "hsl": {
    "h": 219.429,
    "s": 66.879,
    "l": 30.784
  },
  "oklch": {
    "l": 0.3804,
    "c": 0.12364,
    "h": 261.8
  },
  "luminance": 0.05304
}

Semantic roles & 50–950 ramp

primary

#1A3E83

secondary

#B78F42

accent

#AF3EEA

background

#F6F6FA

surface

#ECECF4

border

#C7C7CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #1A3E83

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →